Kwimveliso yanamhlanje, ukusuka kwimizimba yeemoto ukuya kwizixhobo zasekhitshini, isinyithi esingenasici siyinto yonke.Ukuchasa indawo yokuweldaigqame njengenye yeendlela ezisebenzayo kunye nezongayo zokujoyina amacwecwe entsimbi ecwebileyo. Ukuchaneka kwalo msebenzi kumisela ngokuthe ngqo umgangatho wemveliso yokugqibela kunye nokuqina. Nangona kunjalo, uninzi lwabaqhubi basathembela kwi-intuition, ekhokelela kumgangatho ongahambelaniyo we-weld kunye nokunxiba okukhawulezileyo kwezixhobo.
Esi sikhokelo senzelwe ukutshintsha loo nto. Ukuhamba ngaphaya kwethiyori engabonakaliyo, sinikezela ngezenzo, izandla{1}}kwincwadi yesandla ezaliswe ngamanyathelo aneenkcukacha{2}}nge{3}}ngenkqubo yenyathelo, izindululo zeparameter ezichanekileyo, kunye neengcebiso ezinokuthathwa zokucombulula ingxaki. Le "ncwadi yesandla" iya kukuxhobisa ukuba ukwazi kakuhle iindlela ezingundoqo zokuwelda indawo yentsimbi engenastainless, iqinisekisa ukuba yonke i-weld nugget yomelele, icocekile kwaye ithembekile.
Icandelo 1: Ukuntywila ngokunzulu kwiZigaba ezine zeGolide zeSpot Welding
Yonke indawo ebonakala ngathi yenzeke ngoko nangoko iweld ifumana inkqubo elawulwa ngokucokisekileyo. Le nkqubo ibekwe emgangathweni ibe zizigaba ezine ezingundoqo. Ukuqonda kunye nokulawula ngokuchanekileyo isigaba ngasinye sisiseko sokuzuza{2}}umgangatho ophezulu we welds.
1. Ixesha lokucudisa: Isiseko sayo yonke iWeld eyimpumelelo
- Umsebenzi ongundoqo:Phambi kokuba kusetyenziswe nawuphi na umsinga, ii-electrode eziphezulu nezisezantsi ze-welder ziyehla ukuze zifake amandla azinzileyo, amiselwe kwangaphambili kwizinto zokusebenza zentsimbi engenastainless, zizicinezela kuqhagamshelwano olusondeleyo.
- Kutheni Kubalulekile:Injongo ephambili yesi sigaba kukuphelisa naziphi na izithuba zomoya phakathi kwezinto zokusebenza, ukuqinisekisa indlela efanayo yombane. Uxinzelelo olunganelanga okanye olungalinganiyo lunokubangela ukuxhathisa okungaqhelekanga, okukhokelela kwi-spatter enzima kunyei-porosity yangaphakathingexesha lesigaba se-welding, esiphazamisa amandla okubambisana.
- Iingcebiso zeParameter:
- Amandla e-Electrode:Amandla amaninzi akusoloko engcono. Kwintsimbi engatyiwa, amandla acetyiswayo aqheleke ngama-20%-30% aphezulu kunentsimbi enekhabhoni ephantsi yobukhulu obufanayo.
- AMashiti amancinci (Ngaphantsi okanye alingana no-2.0mm):Uluhlu lwamandla lwe 2.2 - 4.5 kN (elilingana no{1}} MPa kwezinye iinkqubo) liyacetyiswa.
- Thick Sheets (>2.0mm):Uluhlu lwamandla lwe 4.5 - 7.0 kN (elingana no{1}} MPa) luyacetyiswa.
- Ubude bexesha lokucudisa:Ixesha kufuneka lanele ukuze amandla azinzise kuwo wonke ummandla we-weld, ngokuqhelekileyo ubekelwe imijikelo eyi-10-20 (apho umjikelo we-1=0.02 imizuzwana ye-50Hz AC unikezelo).
2. Ixesha le-Weld: Undoqo woKuqulunqwa kweNugget
- Umsebenzi ongundoqo:Ngelixa ugcina amandla okucudisa, umsinga we welding ophezulu-ugqithiswa kwiielectrode kunye nezinto zokusebenza ngephanyazo. Ngenxa yensimbi engenastainless ephezulu yokuxhathisa umbane (malunga namaxesha ama-3 ezantsi{3}yentsimbi yekhabhoni), ubushushu buqokelelana ngokukhawuleza kwindawo yoqhagamshelo, yenze i-lenticular{4}emile okwentsimbi etyhidiweyo engundoqo eyaziwa ngokuba yi "weld nugget."
- Kutheni Kubalulekile:Ubungakanani kunye nokunyaniseka kwe-weld nugget kuqinisekisa ngokuthe ngqo amandla okugqibela okudibanisa. I-synergy echanekileyo phakathi kwangoku kunye nexesha ngumphefumlo wesi sigaba.
- Iingcebiso zeParameter (kwi-common 304 Stainless Steel):
- I-Welding yangoku:Le yeyona nto ibalulekileyo echaphazela ukwenziwa kobushushu. Okuncinci kakhulu oku kubangela i-"cold weld" (insufficient fusion), ngelixa kakhulu kunokubangela "ukugxothwa" (ukutshisa{1}}ngokusebenzisa) okanye ukutshiza okugqithisileyo.
- Ubude bexesha leWeld:Oku kulawula igalelo lobushushu lilonke. Insimbi engenasici ine-thermal conductivity engalunganga, oku kuthetha ukuba ubushushu abupheli ngokukhawuleza. Ke ngoko, ishedyuli "enzima" ye weld-esebenzisa umsinga ophezulu ixesha elifutshane{3}}idla ngokusetyenziswa ukugxila amandla, ukunciphisa ubushushu{4}}indawo echaphazelekileyo (HAZ), kunye nokunciphisa ukugqwetheka.
- Itshathi yeReferensi:I-Spot Welding Parameters ecetyiswayo kwii-Stainless Steel Sheets
| Ukutyeba kweShiti ngokupheleleyo (mm) | I-Electrode Face Diameter (mm) | Amandla e-Electrode (N) | IWelding yangoku (A) | Ixesha le-Weld (Izijikelezo) |
| 1.0 (0.5+0.5) | 4.0 | 2200 | 4,000 - 5,500 | 8 - 12 |
| 2.0 (1.0+1.0) | 5.0 | 3500 | 6,000 - 8,000 | 12 - 18 |
| 3.0 (1.5+1.5) | 6.0 | 5000 | 8,500 - 11,000 | 18 - 25 |
| 4.0 (2.0+2.0) | 7.0 | 6800 | 11,500 - 14,000 | 25 - 35 |
3. Bamba ixesha: Ixesha elibalulekileyo lokuQinisekisa elichaza amandla
- Umsebenzi ongundoqo:Emva kokuba i-welding current inqunyulwe, amandla e-electrode kufuneka agcinwe ixesha elithile, ngokufanelekileyo "ukwenza" i-weld nugget eshushu njengoko ipholile kwaye iqina.
- Kutheni Kubalulekile:Esi sigaba sibalulekile ekuthinteleni iziphene zangaphakathi ezinje ngokuncipha kunye nokuqhekeka. Ukukhulula uxinzelelo ngaphambi kwexesha kuya kubangela ukuba isinyithi esinyibilikisiweyo sinciphe ngaphandle kokunyanzeliswa kwamandla okudibanisa, okukhokelela kwimingxuma yangaphakathi kunye nokunciphisa kakhulu amandla adibeneyo.
- Iingcebiso zeParameter:
- Bamba Ixesha:Ixesha lokubamba ngokuqhelekileyo libekwe ku-1.5 ukuya ku-2 amaxesha exesha le-weld. Oku kuqinisekisa ukuba i-nugget inexesha elaneleyo lokuyikristala phantsi koxinzelelo, yenza i-dense, isandi se-metallurgical structure.
4. Ixesha lokuvala: Ukulungiselela i-Next Perfect Weld
- Umsebenzi ongundoqo:Ii-electrode zihlehla kwindawo yazo yokuqala, zigqibezela umjikelo we-weld omnye.
- Kutheni Kubalulekile:Kwimisebenzi ye-welding eqhubekayo, eli lixesha eliphakathi kwe-welds. Injongo yayo ephambili kukuvumela i-electrodes kunye nezixhobo umzuzwana ukupholisa, ukuqinisekisa ukuhambelana kwe-weld elandelayo.
- IiMfuneko zobuGcisa:Ukurhoxiswa kwe-electrode kufuneka kube mpuluswa ukunqanda ukonakala kwempembelelo kwaye kuqinisekiswe-ukuthembeka kwexesha elide lesixhobo.
Icandelo 2: Izinto eziphambili kunye neeNgcebiso eziSebenzayo zokuphucula umgangatho we-Weld
Nje ukuba uyifunde kakuhle inkqubo esisiseko, ukwenza ezi zinto zilandelayo ziphambili ziya kuwunyusa umgangatho wakho we-welding ukuya kwinqanaba elilandelayo.
1. Ulawulo lwe-Electrode: I-"Tip of the Spear" yoMgangatho we-Weld
I-electrode yindlela yodwa yokudlulisa amandla kunye nangoku; imeko yayo ichaphazela ngqo uzinzo welding.
- Ukukhethwa kwezinto:I-welding steel stainless steel, iChromium Zirconium Copper (Cr-Zr-Cu, i-Class 2 Alloy) i-electrodes iyacetyiswa ngamandla. Banikezela ngendibaniselwano egqwesileyo ye-conductivity elungileyo yombane kunye nobunzima obuphezulu kunye nokuthambisa amaqondo obushushu, okubenza ukuba bomelele ngakumbi kunee-electrode zobhedu eziqhelekileyo.
- Ukunxiba rhoqo:Ngaphantsi kobushushu obuphezulu kunye noxinzelelo, iingcebiso ze-electrode ziya ngokuthe ngcembe "i-mushroom" (i-flatten kunye nokwandisa), okunciphisa ubuninzi bangoku. Kufuneka banxityiswe kwakhona{1}}ngesisiki esikhethekileyo ukugcina ijometri yabo yoqobo.
- Ukutshintshwa kweTreshold:Xa i-electrode incam ye-diameter inyuke ngaphezu kwe-20% ngenxa yokuguga, okanye ukuba kukho ukuncamathela okukhulu okanye ukugoba, kufuneka kutshintshwe ngokukhawuleza ukuqinisekisa umgangatho we-weld.
2. Inkqubo yokupholisa: ILifeline yeZixhobo zakho
Izixhobo zokuwelda zivelisa ubushushu obukhulu, nto leyo eyenza ukupholisa okusebenzayo kubaluleke kakhulu.
- Ulawulo lobushushu bamanzi:Qinisekisa ubushushu bokungena kwamanzi okupholisa bugcinwe phakathi kwe-5-30℃(41-86℃F) kwaye iqondo lobushushu lokuphuma alidluli kuma-40 degrees (104 degrees F). Ukushisa kwamanzi aphezulu kuya kubangela ukuba ii-electrode zigqithise kwaye zithambe, zinciphise kakhulu ubomi babo.
- Ukujongwa koMyinge wokuHambo:Hlola rhoqo isiphaluka samanzi kwiibhlokhi kwaye uqinisekise ukuhamba okwaneleyo. Emva kokuvala ebusika, sebenzisa rhoqo umoya oxinzelelweyo ukuze uhlambulule nawaphi na amanzi asele kwimigca ukukhusela ukukhenkceza kunye nokuqhekeka kwamacandelo.
3. Ngaphambi{1}}uLungiselelo lwe-Weld: Impumelelo ikwiNgcaciso
- Ukucoca uMphezulu:Ngaphambi kwe-welding, kunyanzelekile ukuba ususe ngokucokisekileyo zonke ioyile, igrisi, uthuli, isikali, kunye nezinye izinto ezingcolisayo kumphezulu wentsimbi. Sebenzisa i-degreaser efanelekileyo okanye i-alcohol wipe. Oku kungcola kwandisa kakhulu ukuxhatshazwa koqhagamshelwano, okukhokelela ekufudumeni okungahambelaniyo kunye "ne-welds ebandayo."
- Ukuphatha iMathiriyeli egqunywe:Ukuba i-welding galvanized okanye enye i-coated stainless steel, umaleko wokugquma unokunamathela ngokulula kwi-electrode kumaqondo obushushu aphezulu. Ukufaka i-emulsion ecekethekileyo, elinganayo ye-graphite ebusweni be-electrode inokusebenza njenge-anti{1}}esebenzayo intonga.
Icandelo 3: Ukuqinisekiswa koMgangatho kunye neeProtokholi zoKhuseleko
1.Uqinisekiso lobulunga:
- UHlolo oluBonakalayo:I-weld nugget efanelekileyo kufuneka ibe setyhula okanye i-oval kancinane kunye ne-indentation encinci. Akufunekanga kubekho iintanda, ukugxothwa, okanye isitshizi esigqithisileyo.
- Uvavanyo olonakalisayo:Ngaphambi kokuveliswa kobuninzi okanye emva kokuguqulwa kwenkqubo, uvavanyo lwe-peel (ukunyanzela amaphepha amabini ngaphandle kwe-chisel) kufuneka lwenziwe. I-weld esemgangathweni iya kubangela "i-nugget pull," apho iqhosha lentsimbi likrazulwa kwelinye lamaphepha omzali, kunokuba i-weld ichebe kwi-interface. Le yeyona ndlela ingqalileyo yokuqinisekisa ukuba udibaniso olululo lwenzekile.
2.IiNkqubo zokuSebenza ngoKhuseleko:
- Isixhobo soKhuseleko soMntu (PPE):Ngalo lonke ixesha unxibe iindondo zokhuseleko, iiglavu ezigqunyiweyo, kunye nedangatye{0}}ifaskoti engayivaliyo ukukhusela kwiintlantsi kunye nesitshizi sesinyithi esinyibilikisiweyo.
- Ukhuseleko lweZixhobo:Qinisekisa ukuba i-welder isekelwe ngokufanelekileyo. Ungaze ubeke izandla zakho okanye nayiphi na inxalenye yomzimba phakathi kwee-electrode.
- Ukhuseleko lokusiNgqongileyo:Gcina indawo yokuwelda icocekile kuzo zonke izinto ezinokutsha neziqhumayo (umzekelo, iisilinda zerhasi, ipeyinti, izinyibilikisi) kumgama oziimitha ezi-5.
Ukuqukumbela
Ubuchule bokuwelda indawo yentsimbi estainless luhambo olutshata ithiyori ngezandla-kwiprakthiza. Ngokunamathela ngokungqongqo "kwiZigaba ezine zeGolide," usebenzisa iitshathi zeparameter ukuseta ngokwenzululwazi, kunye nokwenza ngobuchule amanyathelo aphambili anjengolawulo lwe-electrode, ukugcinwa kwenkqubo yokupholisa, kunye nokulungiswa{2}}kwangaphambili, unokuphucula ngokumangalisayo ukuhambelana kunye nomgangatho weewelds zakho. Phatha wonke umsebenzi njengenkqubo echanekileyo, kunye neyakhoindawo welderiya kuba liqabane elithembekileyo ekudaleni iimveliso eziphezulu.
